|Time-Resolved Optical and Thermal Analyses of High-Power Laser Diode Arrays - Allan, Graham R.|
Time-resolved optical and thermal analyses of laser diode arrays reveals temperature induced chirp and the presence of anomalous hot spots.
Keywords: ELECTROMAGNETIC ACCELERATION; LIQUID ROCKET PROPELLANTS; DESIGN ANALYSIS; THERMAL PLASMAS; POROSITY; PLASMAS (PHYSICS)
|Saturn IB/5 instrument unit instrumentation system description (S-IU-2-02 through 204/501 through 503) - NON|
No Abstract Available
Keywords: THERMAL CONTROL COATINGS; ZINC COMPOUNDS; OPTIMIZATION; PIGMENTS; RADIATION DAMAGE; THERMAL PLASMAS
|DECAMETER WAVELENGTH RADIO EMISSION OF JUPITER AS AN INDICATION OF HIGH VELOCITY FLUXES AND SHOCKWAVES IN THE SOLAR WIND - KOVALENKO, V. A.|
THE POSSIBILITY OF DETERMINING THE AVERAGE VELOCITIES OF THE GEOEFFECTIVE FLUXES AND SHOCK WAVES IN THE SOLAR WIND OF JUPITER DURING MINIMUM SOLAR ACTIVITY WAS INVESTIGATED. DATA WERE TAKEN FROM DECAMETER WAVELENGTH RADIO EMISSION.
Keywords: ACOUSTIC EXCITATION; ALKALI METALS; FLAMES; SOUND WAVES; IONIZATION POTENTIALS; POTASSIUM OXIDES; THERMAL PLASMAS; THERMODYNAMIC EQUILIBRIUM
|AERODYNAMICS AND FLIGHT DYNAMICS OF TURBOJET AIRCRAFT - LIGUM, T. I|
AERODYNAMICS AND FLIGHT DYNAMICS OF TURBOJET AIRCRAFT
Keywords: ELECTRIC ARCS; ELECTRICAL RESISTIVITY; HIGH TEMPERATURE AIR; THERMAL CONDUCTIVITY; THERMAL PLASMAS; ELECTRICAL MEASUREMENT; NITROGEN; TEMPERATURE MEASUREMENT
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|Dominant Presence of Oxygenated Organic Species in the Remote Southern Pacific Troposphere - Singh, H.|
Oxygenated organic species are intimately involved with the fate of nitrogen oxides (NOx) and hydrogen oxides (HOx), which are necessary for tropospheric ozone formation. A recent airborne experiment (March-April, 1999) focused over the Southern Hemisphere (SH) Pacific Ocean (Pacific Exploratory Mission-Tropics B (PEM-Tropics B)) provided a first opportunity for a detailed characterization of the oxygenated organic composition of the remote Southern Hemisphere troposphere...
Keywords: X RAY SOURCES; ROTATION; EMBEDDING; CORONAS; PRE-MAIN SEQUENCE STARS; MAGNETIC VARIATIONS; HIGH TEMPERATURE PLASMAS; VARIABLE STARS; THERMAL PLASMAS; SHOCK HEATING
|The Visible Imaging System (VIS) for the Polar Spacecraft - Frank, L. A.|
The Visible Imaging System (VIS) is a set of three low-light-level cameras to be flown on the POLAR spacecraft of the Global Geospace Science (GGS) program which is an element of the International Solar-Terrestrial Physics (ISTP) campaign. Two of these cameras share primary and some secondary optics and are designed to provide images of the nighttime auroral oval at visible wavelengths. A third camera is used to monitor the directions of the fields-of-view of these sensitive auroral cameras with...
Keywords: PLASMASPHERE; MAGNETIC STORMS; MAGNETIC FLUX; IONS; HYDRODYNAMICS; ELECTRONS; CONTINUITY EQUATION; DYNAMIC MODELS; HEATING; RING CURRENTS; COULOMB COLLISIONS; THERMAL PLASMAS; PLASMAS (PHYSICS); PHOTOELECTRONS; KINETIC ENERGY
|Multiwavelength Modeling of Nova Atmospheres - Hauschildt, P. H.|
We have analyzed the early optically thick ultraviolet spectra of Nova OS And 1986 using a grid of spherically symmetric, non-LTE, line-blanketed, expanding model atmospheres and synthetic spectra with the following set of parameters: 5,000 less than or equal to T(sub model) less than or equal to 60,000K, solar abundances, (rho)(alpha) r(sup -3), v(sub max) = 2000 km/s, L = 6 x 10(exp 4) solar luminosity, and a statistical or microturbulent velocity of 50 km/s...
Keywords: PLASMA PROPULSION; ELECTRIC POTENTIAL; SUPPRESSORS; RARE GASES; PROTOTYPES; PLUMES; ROCKET THRUST; PLASMAS (PHYSICS); THERMAL PLASMAS; MAGNETIC FIELDS; VARIABLE THRUST; TOKAMAK DEVICES; HIGH TEMPERATURE; SPECIFIC IMPULSE
|A Numerical Study of Tropical Sea-Air Interactions Using a Cloud Resolving Model Coupled with an Ocean Mixed-Layer Model - Shie, Chung-Lin|
Coupling a cloud resolving model (CRM) with an ocean mixed layer (OML) model can provide a powerful tool for better understanding impacts of atmospheric precipitation on sea surface temperature (SST) and salinity. The objective of this study is twofold. First, by using the three dimensional (3-D) CRM-simulated (the Goddard Cumulus Ensemble model, GCE) diabatic source terms, radiation (longwave and shortwave), surface fluxes (sensible and latent heat, and wind stress), and precipitation as input ...
Keywords: BACKGROUND RADIATION; THERMAL PLASMAS; RADIATION; SPECTRAL EMISSION; DIFFUSE RADIATION; SPATIAL DISTRIBUTION; X RAYS; GALACTIC RADIATION; INTERSTELLAR MATTER; SHADOWS; MOLECULAR CLOUDS; ROSAT MISSION
|A method for obtaining desired sensitivity characteristics with optimal controls - Deyst, J. J., Jr.|
Sensitivity design characteristics for feedback optimal controls
Keywords: BOLTZMANN TRANSPORT EQUATION; PLASMA PHYSICS; STATISTICAL MECHANICS; THERMAL PLASMAS; ELECTRON PLASMA; LONGITUDINAL WAVES; MAXWELL BODIES; PLASMA WAVES; TRANSVERSE WAVES; COLD PLASMAS; LANDAU DAMPING; MAGNETIC FIELDS
|Volcanic Constructs on Ganymede and Enceladus: Topographic Evidence from Stereo Images and Photoclinometry - Schenk, Paul M.|
The morphology of volcanic features on Ganymede differs significantly from that on the terrestrial planets. Few if any major volcanic landforms, such as thick flows or shield volcanoes, have been identified to date. Using new stereo Voyager images, we have searched Ganymede for relief-generating volcanic constructs. We observed seven major types of volcanic structures, including several not previously recognized...
Keywords: PLASMASPHERE; DIURNAL VARIATIONS; MAGNETIC FLUX; ELECTRIC FIELDS; DIFFUSIVITY; SPACE PLASMAS; CHARGED PARTICLES; REMOTE SENSING; THERMAL PLASMAS; TRAPPED PARTICLES; CONVECTION; MORPHOLOGY; COROTATION
|Effect of gamma-radiation from cobalt-60 on the process of ovulation, fertilization, and embryonic development of a frog - Voyno-Yasenetskiy, A. V|
Gamma radiation effects on reproductive system and embryonic development of frogs
Keywords: BOLTZMANN TRANSPORT EQUATION; PROBLEM SOLVING; TRANSPORT PROPERTIES; ENERGY TRANSFER; GAS MIXTURES; KINETIC THEORY; PARTICLE DIFFUSION; THERMAL PLASMAS; ION MOTION; MATHEMATICAL MODELS; MOMENTUM TRANSFER
|Geomagnetic Storm Effects in the Low- to Middle-Latitude Upper Thermosphere - Burns, A. G.|
In this paper, we use data from the Dynamics Explorer 2 (DE 2) satellite and a theoretical simulation made by using the National Center for Atmospheric Research thermosphere/ionosphere general circulation model (NCAR-TIGCM) to study storm-induced changes in the structure of the upper thermosphere in the low- to middle-latitude (20 deg-40 deg N) region of the winter hemisphere. Our principal results are as follows: (1) The winds associated with the diurnal tide weaken during geomagnetic storms, c...
Keywords: THERMAL PLASMAS; HYDRODYNAMIC EQUATIONS; DECELERATION; TIME DEPENDENCE; PLASMASPHERE; REFILLING; ELECTRON DENSITY (CONCENTRATION); ELECTRON PLASMA; ELECTRIC FIELDS; MAGNETIC STORMS; KINETIC EQUATIONS; FLUX (RATE)
|Advanced High Temperature Structural Seals - Newquist, Charles W.|
This program addresses the development of high temperature structural seals for control surfaces for a new generation of small reusable launch vehicles. Successful development will contribute significantly to the mission goal of reducing launch cost for small, 200 to 300 pound payloads. Development of high temperature seals is mission enabling. For instance, ineffective control surface seals can result in high temperature (3100 F) flows in the elevon area exceeding structural material limits...
Keywords: THERMAL PLASMAS; ION INJECTION; PULSED PLASMA THRUSTERS; METALLIC PLASMAS; DESIGN ANALYSIS; SPECIFIC IMPULSE; NUCLEAR ELECTRIC PROPULSION; MATHEMATICAL MODELS; MAGNETOHYDRODYNAMICS; LIQUID LITHIUM
|Analytic MHD Theory for Earth's Bow Shock at Low Mach Numbers - Grabbe, Crockett L.|
A previous MHD theory for the density jump at the Earth's bow shock, which assumed the Alfven M(A) and sonic M(s) Mach numbers are both much greater than 1, is reanalyzed and generalized. It is shown that the MHD jump equation can be analytically solved much more directly using perturbation theory, with the ordering determined by M(A) and M(s), and that the first-order perturbation solution is identical to the solution found in the earlier theory...
Keywords: EXTREME ULTRAVIOLET RADIATION; SOLAR WIND; TRACE ELEMENTS; HYDROGEN; ULTRAVIOLET SPECTRA; SOLAR ACTIVITY EFFECTS; THERMAL ANALYSIS; PLASMA TEMPERATURE; LINE SPECTRA; SOLAR SPECTRA; SOLAR X-RAYS; SOLAR CORONA; THERMAL PLASMAS; X RAY TELESCOPES; SPECTROHELIOGRAPHS; ABUNDANCE